-LRB- CNN -RRB- -- A huge British military base in one of the most dangerous parts of Afghanistan got a surprise arrival this week as a soldier gave birth to a baby boy .

Britain 's Ministry of Defence does not allow troops to deploy on operations if they are pregnant , but the ministry did n't know the woman was expecting .

It refused to confirm reports in the British media that the soldier did n't know she was pregnant .

The mother and baby at Camp Bastion are both in stable condition in a field hospital , the ministry said .

That 's the same camp where Britain 's Prince Harry is stationed as an Apache helicopter pilot in the Taliban heartland of Helmand province .

The ministry said the baby was born Tuesday -- four days after a dramatic raid on the base by well-trained Afghan insurgents dressed in U.S. military uniforms .

The insurgents , working in three teams of five , infiltrated the base , killed two U.S. Marines , destroyed six jets and damaged others before most of them were killed . One attacker was wounded and captured , NATO 's International Security Assistance Force said .

A medical team from John Radcliffe Hospital in Oxford , England , is preparing to go to Afghanistan to care for the mother , the hospital said Thursday .

The mother and baby will be brought back to the United Kingdom for treatment and care , the ministry said .

It could not confirm reports that the baby born at Camp Bastion was named Sebastian . It did not name the mother , whom British newspapers are saying is a gunner .

The ministry could not immediately say whether babies had ever been born to British military personnel before in Afghanistan .

Real stories : They did n't know they were pregnant

@highlight

A British soldier at Camp Bastion in Afghanistan gives birth to a baby boy

@highlight

The British Ministry of Defence did n't know soldier was pregnant when she deployed

@highlight

She 'll be brought back to the United Kingdom